SpaceX Falcon rocket explodes after launch

The spacecraft carried 2,477kg of food, clothing, equipment and science experiments for the station. The gear included the first of two docking systems for space taxis under development by SpaceX and Boeing to park at the station. NASA hopes to turn over crew transportation to the US companies before the end of 2017, breaking Russia's monopoly. The crew on the International Space Station has about four months of food and supplies on board, so the accident does not pose an immediate problem for them. However, NASA's second cargo transporter, run by Orbital ATK , remains grounded following a launch accident in October. In April, a Russian Progress cargo ship also failed to reach the station.